Why did germany sign an armistice in 1918?
germany's allies collapsed and retreated.
the armistice was a temporary halt to the war and germany needed to refresh troops.
turkey was the only ally left and that wasn't enough to fight.
germany wanted time to allow the central powers time to regroup.

The Armistice of 11 November 1918 was the concluding treaty that is agreed among the participants of the First World War. The loss and gain certain territories were also discussed as well as the end of the war on the Western Front. Germany signed the treaty or the armistice because "Germany's allies collapsed and retreated."